There is no red/cyan display in Zerene Stacker.
If you can't see side-by-side stereo, then inside Zerene Stacker the best workaround is to repeatedly click the Swap Sides button in the toolbar. That will alternate between left and right views in each window. If the off-axis views have been properly constructed, the subject will appear to rotate slightly each time the Swap Sides button is pressed.
The method described by Pau, stepping shift from -5% to +5%, works well even when I don't know values for magnification and step size. It is the method that I used to use all the time.
However, what I do now for most studio stacks is to use the Stereo Calculator, described at
https://zerenesystems.com/cms/stacker/d ... wing_angle . That way I just enter values for sensor size, magnification, step size, number of frames, and a desired viewing angle, and the calculator crunches the numbers to come up with the corresponding percent shift. Typically I use plus and minus the shift value for 4 degrees angle off axis. That gives me 8 degrees between eyes, which corresponds to what a typical stereo microscope would give.
For some flattish subjects I increase the shift value so as to accentuate depth, and in case of troublesome subjects sometimes I decrease the shift value to reduce stacking artifacts. But most of the time I'm happy with what the calculator gives for +-4 degrees.
--Rik
